| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Outline of Final Research Achievements |
Porous polydimethylsiloxine (PDMS) membranes were prepared using polyethylene glycol (PEG) as pore forming agent. After the PDMS-PEG membranes were prepared, they were immersed in hot water to remove PEG from the membranes to prepare the PDMS porous membranes. The degree of weight swelling of the membranes in toluene increased with an increase in PEG content, indicating the porosity of the membranes increased with PEG content. The solvent permeation across the membranes was measured by low-pressure (0.2-0.3 MPa) driven filtration. Pure toluene and waste organic liquid containing fine solid particle and organic solvent were used as feed solutions. Toluene permeation increased with increasing the PEG content. The solid particle weight concentration in waste organic liquid was 7.2wt%, however, almost pure solvent was obtained by the filtration: the solid particle weight concentration was less than 0.1wt% in permeate.
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